Study Says Protein May Play
Role in Preventing Alzheimer's

A key piece to the Alzheimer's disease puzzle may have been filled in by researchers at Rockefeller University in New York.

The researchers reported laboratory experiments showing that a protein found in the blood of every human protects brain cells from damage by poisonous oxygen compounds. The experiments also found that of the three versions of the protein, the version that is unusually common in people with Alzheimer's disease is the least effective in protecting the brain cells from oxygen damage, reported Jonathan D....